Status

Social has become an integral part of the Web experience, and that's driving the need for social touch points in the browser. This component covers all pieces of UI and platform work to integrate the social experience into Firefox.

The last element of SocialAPI, Share, is growing into a state of disrepair. Now that webextensions are capable of reproducing what Share is, we'll just remove the last bits and maybe find time to implement Share as a webextension pageAction.

Release Note Request (optional, but appreciated)
[Why is this notable]: The "Share" button disappeared, and this is confusing for users who used this functionality. (cf. bug 1391311 comment 0)
[Affects Firefox for Android]: I don't know.
[Suggested wording]: The "Share" button was removed. You can now use the [page action menu](link to sumo) to quickly copy or email page links to people.
Note: this should be updated to refer to the explicit OS share functionality integration if/when bug 1363169 and friends get fixed.
[Links (documentation, blog post, etc)]: I don't have one. Maybe Shane wants to write one?

I use that feature a lot (the share), I use privacy badger so I disabled everywhere the social buttons but in the browser are more comfortable (speed) but without a replacement I feel very abandoned.
It was only a popup with the share of every social network already filled with url and title.
There any plans for an extension?

(In reply to Daniele "Mte90" Scasciafratte from comment #21)
> I have done an extension that reimplement the feature of the modal to share
> of Firefox share not available anymore on firefox nightly 57. Now we have
> only to wait the review :-)
>
> https://addons.mozilla.org/it/firefox/addon/share-backported/
The extension is now published, thanks Daniele. We can propose this web extension as a migration path in the Nightly release notes.